Queensland's second consecutive Super W victory has been marred by a biting allegation against Wallaroos Captain Liz Patu.
Two second-half intercepts helped the Queensland Women's XV to a 28-3 win against Rugby WA but they were forced to work much harder than in last week's record victory against the Rebels.
Queensland scored four tries to run out comfortable winners in the end.
But the match was marred by an allegation by WA forward Rebecca Clough that she was bitten by Patu in a ruck close to her own line.
Clough complained to referee Lara West, proffering her arm for evidence but having been unsighted she was unable to act.
But she sent a stern warning to Queensland captain Kiri Lingman that such action would not be tolerated.
The big screen replay seemed to indicate Patu will be at least cited for the incident and if found guilty, she is likely to face a lengthy sideline stint.
Queensland ran in 17 unanswered tries in last week's record 112-0 win but were frustrated by a WA side that thwarted their constant attacking efforts.
They led 8-3 at the break after winger Alana Elisaia crossed in the 33rd minute while WA winger Zakiya Kereopa was on the sidelines having been yellow carded for pulling the hair of her Queensland opponent in a fracas.
Queensland had earlier had their own player handed a yellow card, with Alysia Lefau-Fakaosilea sent for a spell in the 16th minute, with No.8 Tui Cope converting a penalty for the opening score of the match.
Queensland hit back almost immediately with fullback Lori Cramer levelling the scores with a penalty of her own before Elisaia crossed.
Despite having a glut of possession throughout the match, Queensland was unable to capitalise until the second half, when centres Cecilia Smith and Lefau-Fakaosilea scored runaway intercept tries.
Another Cramer penalty conversion and try to flying winger Ivania Wong left Queensland comfortable winners.